<!--
{
  "availability" : [
    "iOS: 26.0.0 -",
    "iPadOS: 26.0.0 -",
    "macCatalyst: 26.0.0 -",
    "macOS: 26.0.0 -",
    "tvOS: 26.0.0 -",
    "visionOS: 26.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Metal",
  "identifier" : "/documentation/Metal/MTL4CommandQueue/signalEvent(_:value:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "Metal"
    ],
    "preciseIdentifier" : "c:objc(pl)MTL4CommandQueue(im)signalEvent:value:"
  },
  "title" : "signalEvent(_:value:)"
}
-->

# signalEvent(_:value:)

Schedules an operation to signal a GPU event with a specific value after all GPU work prior to this point is complete.

```
func signalEvent(_ event: any MTLEvent, value: UInt64)
```

## Parameters

`event`

[`MTLEvent`](/documentation/Metal/MTLEvent) to signal.

`value`

the value to signal the [`MTLEvent`](/documentation/Metal/MTLEvent) with.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)